Improvement in apparatus or cocks with safety-plugs



UNITED STATES PATENT OFFICE PIERRE A. GHAMBEAUX; OF PARIS; FRANCE.

IMPFlCVEMENT IN APPARATUS OR COCKS WITH SAFETY-PLUGS.

Specication forming part of Letters Patent No. 146,045, dated December30, 1873; application tiled February 28, 1873.

To all whom fit may concern:

\ Be it known thatl, PIERRE AUGUSTE CHAM- BEAUX, of Paris, in theDepartment ofthe Seine and Republic of France have invented an ImprovedvApparatus or (lock with Safetyllug for Preventing Fraud in theConsumption of L'ightingras7 of which the following is a specification:

My invention relates to the combination of the plug with the body of aoook in such a manner that While the plug may be Withdrawn from its seatfor inspection and cleaning, it cannot be Wholly removed and anotherplug substituted Without destroying some portion of the apparatus; theobject of my invention being to prevent the fraud of obtaining gasbefore it has passed through the meter by means of a union With plug inthe oook on the pipe leading to the meter and another in the cook on thepipe leading from the meter.

Figure 1 is a front elevation of an arrangement by which theabove-mentioned fraud may be practiced. Fig. 2 is a side elevation of acock embodying my invention, and Fig. 3 is a side elevation of anothercock also embodying my invention.

A, Fig. 1, is the cock tted by gas company; B; the cock fitted by theconsumer; C, the union with plugs c c, substituted in lieu of theordinary plugs. By this arrangement no gas is passed through the meter;and it will be evident that the consumer can Withdrawr these plugs7which divert the gas from its proper course, and at a moments noticereplace the original ones, permitting the gas to follow its propercourse through the meter. By adopt ing this plan a fraudulent consumerneed only pay the company for such quantity of gas as he may thinksufficient to prevent his fraud becoming manifest.

D7 Figs. 2 and 3, is a plug embodyingwmy invention; E,.rod or screw, ofone piece with the plug, and having a shoulder, F7 riveted or brazed toits end7 to serve as a stop. As this rod or screw E might be, in somecases, inconvenient, I substitute the ring G, Fig. 2, havin g a chain orlink7 H, permanently fixed to it, this chain carr yin gaknob or button,I, to form a stop. It will be evident that this plug D can be easilyWithdrawn from its seat until the shoulder F on the knob I comes againstthe body of the cock, but cannot be Wholly removed Without breaking offthe shoulder'or knob.

I give preference to the combination illustrat-ed in Fig. 2; but themodication thereof (shown in Fig. 3) may be found more suitable; but

I claim as my invention- The combination, with the plug D, of the ringGr, chain H; and knob I, substantially as described7 and for thepurposes set forth.

lA. CHAMBEAUX.

Witnesses: y

A. LANDARY, GEO. BARNWELL.`

